Automatic train-stop



B. CARLISLE.

AUTOMATIC TRAIN STOP. APPLlcMlon mw imm. Isls,

Patented June 2.4, 1919.

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AUTOMATIC TRAIN STOP.

APPucATlou 1111.50 H3121, 19111.4

1 ,307,807 Patented June 24, 1919.

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B. CARLISLE.V

AUTOMATIC TRAIN STOP. I APPLICATION rlLED F2521. 191s.

1 ,307,807, Patented June 24, 1919.

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UNITED sTATEs PATENT oEErcE.

BERT CARLISLE, OF SANTA`ANA, CALIFORNIAJ AUTOMATIC TRAIN-STOP.

To all whom t may concern.'

Be it known that I, BERT CARLISLE, a citizen of the United States', residing at Santa Ana, in the county of Orange and State of California, have invented new and useful Improvements in Automatic Train- Stops, of which the following is`` a specification.

My object is to make a device which may be applied to a steam locomotive drawing a train supplied with air 'brakes and set so that when a. train goes a certain predetermined distance the apparatus will blow the whistle, close the throttle, and set the air brakes. y

Figure 1 is a diagrammatic plan illustrating the application of my automatic train stop to a locomotive.

Fig. 2 is a detail, partly in elevation and partly in section, of the gage, as seen looking in the direction indicated by the arrows 2 in Figs. 1 and 3.

Fig. 3 is asectionaldetail on the line 3*-3 of Fig. 2. y i

Fig. 4 is a fragmentary plan of the locomotive throttle lever and showing the connection to the automatic train stop.

Fig. 5 is a cross-section of the forward tender axle and showing the connection for operating the automatic train stop.

Fig. 6 is a secti nal detail on the line 6-6 of Fig. 5. i i y Referring to Figs. 1, 2 and 3,'the pipe 1 `leads from the compressed air tank 2 to a stop cock 3, and an operating' lever 4 is fixed upon the stem 5 of the stop cock and a stop arm 6 extends from the operating lever 4 and engages a stop lug 7, so that when the lever 4 is thrown over to liring the stop arm 6 into engagement with the stop lug 7 the valve is closed. i

The gage base 8 is mounted uponthe shelf` 9 of the tender 10 adjacent to the stop cock 3. A gear case 11 extends upwardly from the base 8 and a gage `front 12 is mounted upon the gear case by screws 13. Shafts 14 and 15 aremounted horizontally in the gear case parallel with each other.` `A worm gear 16 is loosely mounted upon the shaft 14 and carries a pinion 17 meshing with a large gear 18 loosely mounted upon the shaft 15, said gear 18 carrying a pinion 19 meshing with a large gear 20 loosely mounted upon the shaft 14 and carrying a pinion 21 meshing with awlarge gear 22 keyed upon the shaft 15. A gear worm 23 is mounted in "the stop cock.

i Specification of Letters Patent.` Patented Juil@ 24, 1919, Application led February 21, 1,918. Serial No. 218,464.

the case in mesh with the worm gear 16. A disk 24 is fixed upon the shaft 15 in front of the gage front 12 and has an annular lflange 25 extending from. its edge forwardly. The indicator arm 2G-is loosely mounted upon a journal 27 extending from the forward end y of the shaft 15, said arm 26 having a return front 12. An arm 33 extends from the re turn bend 28 at approximately right angles to "thearmf 26 and in position to engage unde'r the operating lever 4 and move the operating lever 4 from the position shown in full lines, that is the closed position of the stop cock, to the position shown in. dotted lines that is the open position of In laying out the graduations 32 upon the gage front 12, the circle is divided into one hundred parts and the graduations are intended to count the parts `from one to one hundred. i

MReferring to 'Figs `5 and lG, a spur gear 34 is made in two pieces and mounted upon the tender axle 35,` the two pieces being clamped together 'by loolts 36 and there being a key 37 to hold the gear from rotating upon the axle. i upon the hulo of the gear 34 and asecond spur gear40 is mounted loetween the arms 38 and 39 and has a spindle 41 extending through bearings 42 and 43 in the arms. A. link .45 connects the outer ends of the arms 38l and 39 to a bracket 46 secured to the bottom of the tender. `A iiexible shaft 47 connects one end of the spindle 41 to the gear worm 23. i

If the size of the tender wheel 48 is such that six hundred and sixty revolutions of the wheel will travel a mile and there are sixty-six teeth upon the worm gear 16 and the gear worm 23 is a single thread worm moving the gear 16 one tooth to each revolution of the worm, then six hundred and sixty revolutions of the tender wheel 48 Arms 38 and 39 are journaled 22 is one to 10. Then when the tender wheel 48 has traveled one mile, the pointer 31 will move one one-hundreth of a revolution, or from one graduation to the next. If the train is to be started to run `fifteen miles and stop, the set screw 30 Will be loosened, Ithe arni I26 v,swung to bring .the pointer to the graduation 15, and the set-screw manipulated to tightenthe arm- 26 upon the flange 2,5. Then when the train has gone fifteenmiles the arm 33 will have engaged the lever 4 and thrown it over to open the air line through the pipe 1.

The pipe 49 leading from the stop cock 3 is connected to the air cylinder 50.` 'The piston 51 in the cylinder 50 operates a piston rod 52and a cord 53 connected to theouter end of the piston rod 52 passes through a bearing 54 inthe end of the locomotive throttle lever 55 and is attached to the latch operating lever 56, and a cord 57 connects the endof the piston rod 52 tothe whistle operating mechanism, so that when the stop cock 3 is opened the piston 51 will be moved to blow y,the whistle, pull the latch lever 5G, re

`lease thethrottle lever 55, swing the throttlelever over to `throttle the locomotive, and Ashut yoff the power. AIlVhen the piston 51 reaches the bottom of the cylinder 50 a bypass 58 is openedyto the air cylinder 59 behind the piston 6() land the piston 60 has a piston rod 61 connected by ya cord 62 to the lever 63, saidflever operating the air brake system, so thatwhen the piston 60 is moved by the air pressure passing through the port 58v the lever 63' is operated to set the brakes and stop the train. v

The lower end of the flexible shaft 47 is j connected to a bevel gear 64 andthis bevel gear 64 meshes with av bevel gear 65 fixed upon thev spindle 4l so as to make a right angled joint between the shaft and the spindle.

`A blowroff valve 66,is connected to the :bottom of the cylinder 50 tolet air out of the cylinder when it is desired'to restore the mechanism to normal position and start the train. Before opening the blow-off valve to closed position to stop the air from flowing through, the `pipe 49.

Thus'I have produced an automatic, train ,runa certain distance and the operation of the stop mechanism will first blow the Whis tle and ,throttle theA locomotive, and continued operation -will setthe air brakes and stop` the` train.

Various changeslmaybe madein the details ofconstructio'n without, departing from `lthe spiritof my invention as claimed.

I claim: y l 1.'An automatic train stop construction .com-prisinglgthe combination with a pipe leading from the compressed air tank of the air brakesystem, of a stop cock incorporated into the` pipe, an operating lever fixed upon thestem of the stop cock, a gage base mounted adjacent to the stop cock, a gear case extending upwardly from the gage base, a train of gearing mounted in thc gear case and having a shaft extending forwardly, a

y gage `front mounted around the shaft, an indicator arm loosely mounted upon the shaft, a disk fixed upon the shaft in front of the gage front and having an annular flange extending from its edge, a return bend upon the end of the indicator arm forming` a slot in which the iiange moves, a clamping# screw Ainserted through the return bend to clamp vair brake. system, of a stopcockincorporated into the pipe, an operating lever lixed nponlthe stem of the stop cock, a gage base mounted, adjacent to the lstop cock, a `gear vcase extending upwardly f-rom the gagebase v a train ofl gearing mounted 1n the gear4 case ,andghavinga shaft extending forwardly, a gage frontv mounted around the shaft, an i1idicator,arm yloosely mounted. upon the shaft, a disk fixed upon the shaft in front `of,thegage,front andmhaving an annular flange `extending from its edge, a return ,bend uponthe end of the indicator arm fornimg a slot in Awhich the iiange moves, a

clamping screw inserted through the return y,bend to clamp the armto the fiange, a

l, pointer extending` from the outer end of the 66 the operating lever 4 must be moved back returnbend to the graduations upon the gage front, anarm extendingrfrom the rezturnbend, atiright angles and adapted to engage under'the operating lever to v,move the stoprcock from its closed position to its open position,.andmeans whereby the opening of the stop cock operates the throttle to shut olf the power and operates the air brake system to set the brakes and stop the train.

AIn testimony whereof I have signed my v. name to this specification.

BERT CARLISLE.

'lQ-Die-S. tlllsspatent may be obtanedfor ve 'cents Fachffby address-ing the commissioner of Patents Washington, n. c1 

